66718148 has 24 divisors (see below), whose sum is σ = 133631232. Its totient is φ = 28551744.

The previous prime is 66718129. The next prime is 66718153. The reversal of 66718148 is 84181766.

66718148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66718148² = 8902622545099808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24965 + ... + 27507.

It is an arithmetic number, because the mean of its divisors is an integer number (5567968).

Almost surely, 2^66718148 is an apocalyptic number.

It is an amenable number.

66718148 is an abundant number, since it is smaller than the sum of its proper divisors (66913084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66718148 is a wasteful number, since it uses less digits than its factorization.

66718148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491 (or 3489 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 66718148 is about 8168.1177758404. The cubic root of 66718148 is about 405.5844794728.

It can be divided in two parts, 66718 and 148, that added together give a palindrome (66866).

The spelling of 66718148 in words is "sixty-six million, seven hundred eighteen thousand, one hundred forty-eight".